李明辉,罗欢,樊晓光,等.纯钼薄板各向异性拉压不对称性本构建模研究[J].精密成形工程,2022,14(1):28-33.
LI Ming-hui,LUO Huan,FAN Xiao-guang,et al.Constitutive Model of Anisotropic Tension-Compression Asymmetry of Thin Pure Molybdenum Sheet[J].Journal of Netshape Forming Engineering,2022,14(1):28-33. |
| 纯钼薄板各向异性拉压不对称性本构建模研究 |
| Constitutive Model of Anisotropic Tension-Compression Asymmetry of Thin Pure Molybdenum Sheet |
| 投稿时间：2021-12-09 |
| DOI：10.3969/j.issn.1674-6457.2022.01.004 |
| 中文关键词: 纯钼薄板 各向异性 拉压不对称性 本构模型 |
| 英文关键词: thin pure molybdenum sheet anisotropy tension-compression asymmetry constitutive model |
| 基金项目:国家自然科学基金（52075448） |
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| 摘要点击次数: 1852 |
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| 中文摘要: |
| 目的 对纯钼薄板的各向异性、拉压不对称性以及本构关系进行研究。方法 对纯钼薄板进行不同方向的单拉实验、中心带孔试样单拉实验，和纯钼薄板 V 形弯曲实验，同时结合有限元模拟反推材料力学性能以及对 CPB06 屈服准则及 Swift 强化模型进行参数标定，并进行模型可靠性验证。结果 纯钼薄板具有一定的面内各向异性、拉压不对称性以及显著的厚向各向异性，通过实验与有限元模拟结合所求得的力学性能参数和本构模型与实验结果吻合较好。结论 所提出的反求材料力学性能参数的方法是可靠的，所构建的本构模型可用于指导后续的研究。 |
| 英文摘要: |
| The work aims to study the anisotropy, tension-compression asymmetry and constitutive relationship of thin pure molybdenum sheet. Uniaxial tensile test of thin pure molybdenum sheet and thin pure molybdenum sheet with center hole and V-bending test of thin pure molybdenum sheet were carried out combined with FEM to deduce the mechanical properties and CPB06 yield criterion of materials, calibrate parameters of Swift reinforcement model, and verify the reliability of the model.Thin pure molybdenum sheet had certain in-plane anisotropy, tension-compression asymmetry, and normal anisotropy. Mechanical properties and constitutive model obtained through combination of experiment and FEM are in good agreement with the experimental results. It is concluded that the method of determining the mechanical properties of materials proposed in this paper is reliable and the constitutive model established can be used to guide the subsequent research. |
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